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Barbed wires and dugouts were elements of trenches.
The frontline trenches were shielded by dense barbed wire entanglements. The enemy was typically kept from getting close enough to the trenches to throw grenades by barbed wire being positioned far enough away from them.
The fire-step, which was a step that was two or three feet high, allowed a soldier to look through a trench's parapet and fire through it. The front of the trench, which was shielded by sandbags and had a hole for men to fire through, was known as the parapet.
Dugouts were fortifying slits carved out of trench walls. Some were large enough to fit more than ten guys. They also functioned as the troops' everyday living quarters and their defensive haven.
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Answer: <em>Context of interaction</em>
Explanation:
From the given case/scenario, we can state that this is an example of <em>context of interaction</em>. Here, the supervisor is completely fine with Norah and Katy interacting outside the work-space whereas it is not appropriate to do so while they are office and working. Therefore, the supervisor is concerned with the context of interaction i.e. whether it is outside the office or within the premise.
A longitudinal study is defined as a design that deals with repeated observation and consist of same variables over a period of time.
Explanation:
There are various limitations of longitudinal research but the most important limitation is that is there is huge possibility of unpredictable outcomes. Longitudinal study is based on various cases that is it observes individual for a long period of time and thus it is qualitative in nature.
In case of longitudinal research its very time consuming that is it require much amount of time and the data that is collected is not at all 100% reliable. It is expensive in nature and large sample size is required.